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Calcite mainly contains calcium carbonate and dolomite mainly contains calcium magnesium carbonate. Dolomite differs from calcite because of the presence of magnesium. Calcite reacts quickly with acids and produce carbon dioxide bubbles. But dolomite is weakly reacting with acids producing bubbles very slowly.
Imported Calcium Carbonate Vs Indian Calcium Carbonate
Indian mines lack purity (Caco3 %), whiteness and Brightness due to which in PVC pipe and Fittings and Plastic industries in India calcium carbonate powder of Vietnam, Egypt, Malysia origin is preferred by plastic manufactures. Even in paint and masterbatch industries the imported calcium carbonate powder gives better results compare to Indian counterpart.
Country Of Origin : India
Coated Calcium Carbonate Vs Uncoated / Natural Calcium Carbonate
When the natural calcium carbonate powder is coated with Fatty Acids (Stearic Acid) or Zinc Stearate or Titanium Dioxide, the powder become coated. Generally, in market and PVC Pipe and fittings industries material coated with stearic acid is available and preferred by manufactures due to cost advantages and round the clock availability.
However, when manufactures are using calcium carbonate origin of Vietnam, Malysia or Egypt they should not be worrying about uncoated or natural calcium carbonate powder as all of them have very high percentages of CaCO3, means highly pure; among all for PVC Pipe and fittings, we suggest materials of Vietnam origin due to better physical and chemicals property of materials.
